Oil burner retort



Feb. 28, 1933. E E; DEHART 1,899,315

OIL BURNER RETORT Filed OG 27, 1930 wlw H f Patented Feb. 28,'v i

PATENT OFFICE EvEnE'r'r DEHART, or OMAHA, NEBRASKA opIL BURNER Enron-'r y' Application ,mea ocber 27, 1930.- se'riai No. 491,481.

` The principal object of this invention vis to providea retort for Aoil burners that` will not p meltor burn down orcrack when'jin' use. *,A further object of myinvention'is to pro- 5 vide a retort'for oil burners that is eflicient in use and of exceptionally long life. A still further object of my'invention is to provide'a retort'- for oilburners that is: not subject to the collection of soot,vr but if for any reason the same should L'become fouled, may easily and quicklybe taken apart'for cleaning purposes. y

[A'still further object of this invention is to provide an oil lburner retortwthat is eco-- 15 nomical in manufacture and durable in use. These and other objects will be' 'apparent tothose skilled inthe art. s Myl invention consistsy in the construction',l

. arrangement and combination of the various "220 parts ofthe device, whereby the objects con-y templated are attainedgas" hereinafter more fully set" forth, pointed out inmy claims and illustrated -in the accompanying' drawing, `in' which: j 25 ""Fig. 1 is aside view of my invention.v 1 s 'Fig. I2 is a cross sectional view of kthe de? vice taken on line 2,-2 of Fig. 1.

:Figb isa top plan viewv of a'portionfof 1 olle 0f the upperfforward Vvcorners of the retort pot; Y f v ,s s

' Thisy retort isl designed to `beused as an.`

oilE burner throwing lthe 'flamedownwardly asldistinguished from ,oil burners throwing theilame straight'intofthefurnace or throw-y 35 "ing5the`iiame upwardly in the fire boX of the furnace;vrv Perhaps the best location-of my jretort relative to the furnace is 4in the door ofy the furnace, as inthis position the flame will t be projectedkdown into-the grate or original fuelposition ofthe furnace;

,f have 'used thenumeral 10`A to generally v rdesignate the pot portionof the retort and A thejnumeralll'uto generally desi nate vthe lid portion'. 'lilxtendingr rearwar `ly from --andcompletely`across the rear end of thepot at its upper portion the rectangular inlet pipe 1,2. This rectangular portion is integrallyformed on kthe pot and communicates with the inside of the pot as shown by dotted ,and downwardly extending `bill portion 15 lpot 1 0 itis merely-necessary tol liftfupwardly s f K' lines-'in Fig.` 1. f This portion 12y is designed fan operated by a'p'rime mover for discharg-y 55 ing air into the: member k12, from which it entersk the po'tf portion. When the member 12is extending in an opening of the furnace f or the do'or'of the furnace, the pot portion will 'be' inside the furnace. y In order to 60 securely holdftlieretort in proper position with the member 12eXtending through the furnace vvI have provided a vertical flange 13' integrally formed on the rear upper portion ofzthe pot as shownin the drawing; 65"

Thisfiange has bolt"y hole Aopenings '14 through'which ordinary bolts` pass and also pass 4through holes ldrilledvin the furnace or door of the furnace. -By this arrangement to mount the retortin'proper positiononthe fur 70 nace the lsameiis accomplished by only two ordinary bolts.l vThe retort is'also addition- I ally supported by having its square rear end engaging the inner surface of the furnace or door ofthe furnace., Y I 75 The upper -marginal edge of the two',y side wallsof the pot extendsforwardly and downwardly' as shown inv Fig. 1, and upon'which the lid 11 rests. This lid 11 has aforvvardly integrally'formed on its forward end. It will here be noted that this billportion extends f a considerable distance beyond the forward end of the pot 10. The.numerall'desigf nates a lug integrally formed at each side of '35 the lidy and in the rear of the bill portion 15. Theselugseachl engage a depression` 17 formed `in the p'ot as shown in F ig#v 3 and which are located atthe forward upper end v of each Yof thesides of thepot,frespectively.- These lugs by entering the depressions 17' properly'position and hold the lid on the pot 10. .However,qto remove the lid 11 from the on'the lid flliuntil the lugs 16 are clear ofthe vdepression 17.'. The lid is' as easilyreplaced.

ThenumerallS designates a downwardly ein` l tending lbaiile memberv integrally formed on the rear end portionof the lid 11. When ythe lid lil is onfthe pot l0, the lower endy of this '10o shown in F ig. 1 and extends from its upper marginal edge downwardly and rearwardly, the purpose of which will hereinafter be appreciated. The numeral 20 designates a 5 notch or cut-away portion in the top marginal edge of the Afront wall of the pot 10. This cut-away portion extends approximatelly completely across the width of theforward wall of pot. It will here be noted that the thickness of the forward wallof thepot at this cut-away portion is relatively great, thereby making the same more durable and less possibility of the same melting or burning down when the retort is in` use.` Alsoit forward wall of the pot is rounded in order that there will be less resistance to the air, fuel and flame passing out ofthe retort between the marginal edge of the cut-away portion and the forward end of the lid 11. The

numeral 21 designates an inlet port in the Y jected out of the forward end of the retort in an ignited condition. The baffle member 18 directs the air entering the retort downwardly where it picks up the fuel gas 1n the retort as before stated.l The reason for the row of passageways 19 in the baffle member 18 is to permit a certain amount of cool air from the member 12 to pass in a straight line from the retort.Y

This relatively cool air passingv through 0 the passageways 19 will follow the outline of the innerA surface of the lid 11, thereby keeping the same below a critical melting temperature. This air also forms whatwe might term a sheet that prevents to a certain extent 5 the hot air, gases and flame from contacting with the lid and its bill portion 15. The passageways 19, by the air passing therethrough also prevent carbonorsoot from forming on the lid 11 or forward of the baille member 18.

should be noted that the inner corner of the By the forward endwall of the pot extend-V ing Vdownwardly and` to the rear, the lower The cutawayV portion 20 in the forward end wall of the pot provides a relatively large space between the same and the lid 11 for the escaping gas and flame from the retort thereby permitting the retort to function in a relatively cool condition.

The numeral 22 designates a small opening in the top of the lid 11. This opening may be used to insert a lit match or like to ignite the gas in the retort when it is desired to generate and use the same. This opening should be closed by the small inclosing blade 23 secured to the top of the lid 11 after the gas or fuel in the retort has been ignited.

From the foregoing it will readily be appreciated that I have provided an oil burner retort that will become of such temperature as to successfully gasify, liquid fuel placedtherein but will not reach such a high temperature as tocause it to melt down or crack or otherwise become inoperative.

Some changes may be made in the construction and arrangement of my improved oil burner retort without departing from the real spirit and purpose of my invention, and

it is my intention to cover by my claims 'any modified forms of structure or use of Inechanical equivalents-Which may be reasonably included within their scope.

I claim:

1. In an oil burner retort of the inthe door type, comprising a pot portion having side, front and back walls and having its forward wall curved outwardly and slanted for.- wardly and upwardly from its base, a portion of the upper marginal edge of said forward wall being cut away to provide an.V opening, said opening extending approximately the entire width of said forward wall to allow flame to be projected laterally aswell as forwardly of the pot, a rounded thickened; Inarginal edge formed o n said forward; wall formingfthe base portion of. said opening, an oil inlet in the back wall of said pot and ad,- jacent the bottom thereof, an air inlet in said back wall and adjacent the top thereof, an inverted disk-like detachable lid coveringthe entire top portionrof said pot and having a portion lextending forwardly a substantial distancebeyond the forward wallofsaid pot, said forwardly extending portion being downwardly curved tothrow the iiame in a downward direction, and means for attaching the lid to the pot.

2. In an'oil burner retort of; the in the door type,a lpot portion having 'a bottom; side, front and back walls, said back wall being provided with air and fuel inlets adjacent the upper and lower portions respectively; said forward wall being slantedforwardlyand upwardly from its base and curved outwardlyand a portion of the upper mar.- ginal edge-of said` forward` wall being cut `away to provide an opening, said opening having its marginal edge portion rounded',

las

said forward wall being substantially thicker than said other walls; said side wallsV being Y provided along their upper edges lwith lugreceiving recesses; a lid for the pot, said lid being provided with lugs for insertion in said lugfreceiving recesses of theside walls of said pot, said lid having a portionextending for' wa-rdly of the forward` wall of said pot andy providinga space between said lid and said lokopening in said forward wal1,'saidfforward- 1y extending portion being downwardlyy curved at its forward end to throw the ame f in a downward direction. A f Y 3. In an oil burner retort of the .in the door type, comprising a pot portion having front, back and side walls and having its forward wall curved outwardlyrand lslanted `fory wardly and upwardly from its base, a portion o of the upper marginal edge of said forward wall being cut away to provide anfopening f approximately the width of the pot, a thickened marginal edge formed on fthe said forward Wall, anr air inlet passage-way in the rear wall of said pot and near the top thereof, an oil inlet passage-way inthe rearv wall of said pot and near the bottom-thereoffanda detachable lid completely covering the top of said pot and yextending o iny a*y downwardly curved plane a substantial distance beyond the forward wall of said pot. y

Y EVERETT. E. DEHART. 

